to reprise his role from Friends on the series. Drs. Michael Mitchell and Jeffrey Rosen Drs. Michael Mitchell (George Clooney) and Jeffrey Rosen (Noah Wyle): Two doctors whom Rachel and Monica meet at a hospital and go on a date with. Monica and Rachel pretend to be each other for health insurance purposes—eventually causing things to go wild. Dr. Mitchell later saves the life of Ross's monkey, Marcel, who swallows alphabet tiles from a Scrabble game and nearly chokes to death. (Clooney and Wyle were also cast as physicians on the NBC medical drama ER when they appeared together on Friends.) Jill Goodacre Connick Jill Goodacre Connick (herself) gets trapped with Chandler in an ATM vestibule in "The One with the Blackout". Chandler uses her cell phone to tell Joey and the others, engages in awkward conversion with her, and plays a "spin the phone pen over your head" game with her. Alan Alan (Geoffrey Lower) is Monica's boyfriend in "The One with the Thumb". Everyone likes him more than Monica does. At the end of the episode Monica breaks up with him, and has the break-up talk with the other friends as if they broke up with him, too. The irony is that Alan is relieved when Monica breaks up with him as [he] 'just can't stand your friends'. Lydia Lydia (Leah Remini): a single mother-to-be whose childbirth Joey assists before Carol gives birth to Ben. Their conversations mostly revolve around whose favored basketball team is better, the Boston Celtics (Lydia) or New York Knicks (Joey). In the end, the father of Lydia's baby arrives, and Joey leaves them alone. Remini had originally auditioned for the role of Monica. Roger Roger (Fisher Stevens): a psychiatrist who Phoebe dates in "The One with the Boobies". The other friends take a swift dislike to him after he (very accurately) diagnoses their unconscious needs and foibles—such as Chandler's intimacy issues and Ross' guilt over being favored over Monica by their parents—and their narcissistic group dynamic. Phoebe breaks up with him, having joined the others in hating him; he is never seen again, but is mentioned in the following episode ("The One with the Candy Hearts") when Phoebe calls him because "it's nice to have a date on Valentine's Day"—essentially confirming what he said about her neediness and clinginess. Only in season 2 Caroline Duffy Caroline Duffy (Lea Thompson): a cartoonist. Reprising her